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civilian defense

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auxilliary lights

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NAVY, U.S. U.S. SHIP, UNIDENTIFIED, WITH AUXILLIARY STEAM POWER AT BOSTON NAVY YARD

NAVY, U.S. U.S. SHIP, UNIDENTIFIED, WITH AUXILLIARY STEAM POWER AT BOS...

Picryl description: Public domain image of a ship, navy, harbor, maritime photograph, 19th-20th century architecture, free to use, no copyright restrictions.

Civilian defense. This overhead switch controls the output of a 110-volt direct current generator, operating at 10 kilowatts to supply power to provide power for the two searchlights on the roof of the huge Emergency Service truck. There are also several auxilliary lights runs out from the truck and powered by this generator. This truck in New York City is the only one of its kind, so far

Civilian defense. This overhead switch controls the output of a 110-vo...

Public domain photograph of New York City, free to use, no copyright restrictions image - Picryl description

Civilian protection. Auxilliary pumpers with fire department are so designed that they can be hooked on to any automobile and pulled to the scene of the fire

Civilian protection. Auxilliary pumpers with fire department are so de...

Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description